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Grade 2 Titanium vs. ASTM A148 Cast Steel

Grade 2 titanium belongs to the titanium alloys classification, while ASTM A148 cast steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is ASTM A148 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
190 to 390
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
5.7 to 25
Fatigue Strength, MPa 250
280 to 670
Poisson's Ratio 0.32
0.29
Reduction in Area, % 37
13 to 45
Shear Modulus, GPa 38
73
Tensile Strength: Ultimate (UTS), MPa 420
630 to 1300
Tensile Strength: Yield (Proof), MPa 360
390 to 1160

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400 to 430
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
37 to 47
Thermal Expansion, µm/m-K 9.0
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.3 to 7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.3 to 8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
2.3 to 3.3
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.5 to 1.7
Embodied Energy, MJ/kg 510
20 to 22
Embodied Water, L/kg 110
48 to 53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
71 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 600
400 to 3570
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
22 to 46
Strength to Weight: Bending, points 28
21 to 34
Thermal Diffusivity, mm2/s 8.9
9.9 to 13
Thermal Shock Resistance, points 32
18 to 38